There are a lot of reasons that people who want to become content creators don't end up doing that. One of the most common of those reasons is that there is a common misconception about content creation that in order to do it successfully, you have to be "good" at something.
Granted, having a particular skill can be beneficial depending on the type and scale of content that you are aiming to create. For example, if you're going to create how-to videos about a specific video game, you should ideally have played that game enough to know how to give helpful and valuable instructions.
But that's not the case for every type of content out there. Some creators, for example, make videos or podcasts about subjects they are extremely knowledgeable about. You don't have to be great at speaking or video editing in that case -- you just have to take the subject matter you consider yourself an expert in and figure out how to create consistent, compelling content around it.
When I say anyone can be a content creator, what I really mean is anyone can LEARN to create content. The most effective way to master your own particular brand of content creation is to do it over and over again until it almost becomes second nature to you. You can do all the "studying" you want, you can buy as much equipment and accessories as you want. But you have to actually create content -- and a lot of it -- in order to become a content creator.
So pick a content type or subject and start creating. Choose one platform or multiple. Start figuring out what you like to make, what your voice and style are, and how you're going to reach your goals. Anyone can do it, sure. But first, you actually have to do it!